Career
On 22 February 2016, she reached her best singles ranking of world number 267. On 13 April 2015, she peaked at world number 131 in the doubles rankings. 2012
Lottner started her 2012 season with the G18 G2 Slovak Junior Indoor Tournament in Bratislava.
In the first round she defeated the second seed Kateřina Siniaková, but lost in the following round.
Singles (5–1)
Doubles (5–8)
Girls" Singles.